1.The Regulation of ERK, GSK3beta and AKT after Acute Ethanol Exposure and Withdrawal in SH-SY5Y Human Neuroblastoma Cell-line.
Jaewoo ROH ; Feng Ji CUI ; Ung Gu KANG
Journal of Korean Neuropsychiatric Association 2010;49(2):241-247
OBJECTIVES: This study aimed to demonstrate the activities and phosphorylation changes induced by acute ethanol treatment and withdrawal conditions in the intracellular signal transduction molecules [such as extracellular signal-regulated kinase (ERK), glycogen synthase kinase 3beta (GSK3beta), and Akt] of the SH-SY5Y neuroblastoma cell line. METHODS: The acute treatment exposed SH-SY5Y cells to 100 mM ethanol, and we took samples 30 minutes, 60 minutes, and 24 hours after initiating this treatment. After 24 hours' continuous ethanol treatment, we initiated ethanol withdrawal, taking samples at 30 minutes and 60 minutes. We assayed the kinase phosphorylations via an immunoblot analysis using phosphorspecific antibodies, quantified by optical densitometry. RESULTS: Ethanol treatment induced a transient increase in phosphorylation of GSK3beta and Akt at 30 minutes but failed to change the phosphorylation level of ERK. Ethanol withdrawal induced a transient ERK phosphorylation increase at 30 minutes, but it had no effect on the phosphorylation of GSK3beta or Akt. CONCLUSION: The results indicate that the ethanol-induced cellular response includes the ERK, GSK3beta, and Akt systems. In particular, the ERK pathway may play a role in the acute withdrawal response. This also suggests that a relatively short exposure to ethanol, such as the 24-hour exposure in this study, can induce functional adaptation within a cell.
Antibodies
;
Cell Line
;
Densitometry
;
Ethanol
;
Glycogen Synthase Kinase 3
;
Glycogen Synthase Kinases
;
Humans
;
MAP Kinase Signaling System
;
Neuroblastoma
;
Phosphorylation
;
Phosphotransferases
;
Signal Transduction
2.A Case of Foreign Body Granulomatous Reaction to a Red Lip Cosmetic Tattoo Successfully Treated with Carbon Dioxide Laser.
Soon Hyo KWON ; Jaewoo CHOI ; Sang Young BYUN ; Bo Ri KIM ; Jung Im NA
Korean Journal of Dermatology 2014;52(2):142-143
No abstract available.
Carbon Dioxide*
;
Carbon*
;
Foreign Bodies*
;
Foreign-Body Reaction
;
Granuloma
;
Lasers, Gas*
;
Lip*
3.Dapsone therapy for immune thrombocytopenic purpura: old but still unfamiliar.
Blood Research 2017;52(2):77-78
No abstract available.
Dapsone*
;
Purpura, Thrombocytopenic, Idiopathic*
4.Evaluation of Pedophilia Patients of the National Forensic Hospital by Types of Offense according to the Federal Bureau of Investigation (FBI) Typologies of Child Molesters.
Jaeman LIM ; Jaewoo LEE ; Geumsook SHIM ; Jeongin YANG ; Sunbum KIM ; Daeyoun KIM
Korean Journal of Legal Medicine 2014;38(1):13-18
This study aimed to classify individuals who had perpetrated child sexual abuse according to the Federal Bureau of Investigation (FBI) typologies of child molesters and to assess the correlations between sociodemographic and criminal variables. We examined a total of 26 patients diagnosed with pedophilia (DSM-IV-TR criteria) who had been hospitalized in the National Forensic Hospital for Cure Custody. Data were obtained through self-administered questionnaires and reviews of patient records. Patients were classified into preferential offenders or situational offenders based on FBI typologies. Current and first offense ages of preferential offenders were younger than those of situational offenders. Preferential offenders were more likely to have been exposed to sexual abuse during childhood, and were more likely to watch child pornography than situational offenders (p < 0.05). Additionally, recidivists had lower IQs (intelligence quotient), lower levels of education, and longer illness durations than first-time offenders (p < 0.05). A multiple logistic regression analysis revealed that IQ and duration of illness might be risk factors of recidivism, although results were not statistically significant (p < 0.1). We found that classification of individuals who had sexually abused children into preferential or situational types, based on FBI typologies, provided on pedophile characteristics and probability of recidivism. We highly recommended that low IQ patients receive intensive treatment and education in order to reduce the possibility of future offenses.
Child Abuse, Sexual
;
Child*
;
Classification
;
Criminals
;
Education
;
Erotica
;
Humans
;
Logistic Models
;
Pedophilia*
;
Risk Factors
;
Sex Offenses
;
Surveys and Questionnaires
5.Preliminary Study of Effect of Leuprolide Acetate Treatment on Sexual Fantasy of Sex Offenders.
Jinhyung AHN ; Geumsook SHIM ; Jaewoo LEE ; Janggyu LEE ; Taejun LEE ; Ilseok ROH
Korean Journal of Legal Medicine 2013;37(3):139-144
This study investigated the effect of leuprolide acetate treatment on sex offenders' sexual fantasies and behaviors, as well as on their criminogenic psychological character and the risk of second conviction. The study participants consisted of 22 sex offenders who were confined to the National Institute of Forensic Psychiatry. Among them, 9 patients were given off-label leuprolide acetate for three months to inhibit sexual impulses, whereas the others were not given any medication. All sex offenders underwent two psychological evaluations; the first evaluation was conducted before starting medication, and the second was conducted after medication. Wilson's Sex Fantasy Questionnaire (WSFQ), the Rape Myth Acceptance Scale (RMAS), and the Endorsement of Violence Scale (EVS) were used for evaluation. Leuprolide acetate-treated sex offenders showed a statistically significant decline in the total WSFQ score (p < 0.05). However, the RMAS and EVS scores did not differ after leuprolide acetate treatment, indicating that cognitive distortions like rape myth acceptance and endorsement of violence were unchanged after leuprolide medication. Leuprolide acetate may reduce deviant sexual impulses and fantasies, as suggested by previous research form Korea and other countries. However, it probably cannot alter cognitive distortion. On the basis of these findings, we recommend a combination of leuprolide medication and other therapies, like cognitive behavioral therapy, for the treatment of paraphilic sex offenders.
Cognitive Therapy
;
Criminals
;
Fantasy
;
Forensic Psychiatry
;
Humans
;
Korea
;
Leuprolide
;
Paraphilic Disorders
;
Rape
;
Violence
;
Surveys and Questionnaires
6.Real-Time Computed Tomography Volume Visualization with Ambient Occlusion of Hand-Drawn Transfer Function Using Local Vicinity Statistic
Jaewoo KIM ; Taejun HA ; Heewon KYE
Healthcare Informatics Research 2019;25(4):297-304
OBJECTIVES: In this paper, we present an efficient method to visualize computed tomography (CT) datasets using ambient occlusion, which is a global illumination technique that adds depth cues to the output image. We can change the transfer function (TF) for volume rendering and generate output images in real time. METHODS: In preprocessing, the mean and standard deviation of each local vicinity are calculated. During rendering, the ambient light intensity is calculated. The calculation is accelerated on the assumption that the CT value of the local vicinity of each point follows the normal distribution. We approximate complex TF forms with a smaller number of connected line segments to achieve additional acceleration. Ambient occlusion is combined with the existing local illumination technique to produce images with depth in real time. RESULTS: We tested the proposed method on various CT datasets using hand-drawn TFs. The proposed method enabled real-time rendering that was approximately 40 times faster than the previous method. As a result of comparing the output image quality with that of the conventional method, the average signal-to-noise ratio was approximately 40 dB, and the image quality did not significantly deteriorate. CONCLUSIONS: When rendering CT images with various TFs, the proposed method generated depth-sensing images in real time.
Acceleration
;
Computer Systems
;
Cues
;
Dataset
;
Lighting
;
Mathematical Computing
;
Methods
;
Signal-To-Noise Ratio
7.Mediating Effects of Person-environment Fit between Calling and Job Satisfaction of Nurses in Small and Medium Size General Hospitals
Journal of Korean Academy of Nursing Administration 2018;24(5):365-374
PURPOSE: This study was done to identify the mediating effect of person-environment fit on the relationships between calling and job satisfaction for nurses in small and medium size general hospitals. METHODS: A cross-sectional survey was used and data were collected in April 2018. Participants were 117 nurses in two small and medium size general hospitals. Data were analyzed using descriptive statistics, Pearson correlation coefficients and hierarchical multiple regression with SPSS/WIN 22.0. RESULTS: There were statistically significant positive correlations among calling, person-environment fit, and job satisfaction. Hierarchical multiple regression analysis revealed that calling and person-environment fit explained 35% of job satisfaction. Also, person-environment fit had a total mediating effect on the relationship between calling and job satisfaction. CONCLUSION: Findings indicate that calling and person-environment fit are important factors for job satisfaction of nurses in small and medium size hospitals.
Cross-Sectional Studies
;
Hospitals, General
;
Job Satisfaction
;
Negotiating
8.Elevated levels of activated and inactivated thrombin-activatable fibrinolysis inhibitor in patients with sepsis.
Rojin PARK ; Jaewoo SONG ; Seong Soo AN
Korean Journal of Hematology 2010;45(4):264-268
BACKGROUND: In sepsis, large scale inflammatory responses can cause extensive collateral damage to the vasculature, because both coagulation and fibrinolysis are activated unevenly. Thrombin-activatable fibrinolysis inhibitor (TAFI) plays a role in modulating fibrinolysis. Since TAFI can be activated by both thrombin and plasmin, it is thought to be affected in sepsis. Hence, activated and inactivated TAFI (TAFIa/ai) may be used to monitor changes in sepsis. METHODS: TAFIa/ai-specific in-house ELISA can detect only the TAFIa/ai form, because the ELISA capture agent is potato tuber carboxypeptidase inhibitor (PTCI), which has selective affinity towards only the TAFIa and TAFIai isoforms. TAFIa/ai levels in plasma from 25 patients with sepsis and 19 healthy volunteers were quantitated with the in-house ELISA. RESULTS: We observed increased TAFIa/ai levels in samples from patients with sepsis (48.7+/-9.3 ng/mL) than in samples from healthy individuals (10.5+/-5.9 ng/mL). In contrast, no difference in total TAFI concentration was obtained between sepsis patients and healthy controls. The results suggest that TAFI zymogen was activated and that TAFIa/ai accumulated in sepsis. CONCLUSION: The detection of TAFIa/ai in plasma could provide a useful and simple diagnostic tool for sepsis. Uneven activation of both coagulation and fibrinolysis in sepsis could be caused by the activation of TAFI zymogen and elevation of TAFIa/ai. TAFIa/ai could be a novel marker to monitor sepsis and other blood-related disturbances.
Carboxypeptidase U
;
Enzyme-Linked Immunosorbent Assay
;
Fibrinolysin
;
Fibrinolysis
;
Humans
;
Organothiophosphorus Compounds
;
Plasma
;
Protein Isoforms
;
Sepsis
;
Solanum tuberosum
;
Thrombin
9.Diagnosis of non-overt disseminated intravascular coagulation made according to the International Society on Thrombosis and Hemostasis criteria with some modifications.
Korean Journal of Hematology 2010;45(4):260-263
BACKGROUND: An early diagnosis of disseminated intravascular coagulation (DIC) before its progression to an overt stage is necessary for early treatment and positive outcomes. In 2001, the Scientific and Standardization Committee (SCC) of the International Society on Thrombosis and Hemostasis (ISTH) proposed new criteria for the preclinical diagnosis of overt and non-overt DICs. We investigated the clinical usefulness of the modified ISTH criteria for non-overt DIC diagnosis. METHODS: We enrolled 296 DIC patients (170 males and 126 females) admitted and evaluated at the Gangnam Severance Hospital, Seoul, Korea, between March 2006 and April 2007. Hemostatic tests, including platelet counts, prothrombin time (PT), D-dimer levels with antithrombin, and protein-C levels, were evaluated by excluding negative scores with clinical signs, in which more than 5 points of interest denoted non-overt DIC. Mortality rates were also evaluated. RESULTS: There were 289 patients with increased D-dimer levels and significant parametric changes suggesting DIC progression. Protein C and antithrombin levels were lower (99.2% each) and appeared earlier in patients with non-overt DIC than in patients with overt DIC. In all, 125 (43.3%) patients had non-overt DIC and, of which 27 died (mortality rate, 21.6%). The sensitivity and specificity for mortality were 73.0% and 55.9%, respectively, which were same as those for the original ISTH criteria. CONCLUSION: The modified ISTH criteria can be used for the early detection of non-overt DIC, and may be useful for the improvement of outcomes of non-overt DIC patients.
Dacarbazine
;
Disseminated Intravascular Coagulation
;
Early Diagnosis
;
Fibrin Fibrinogen Degradation Products
;
Hemostasis
;
Humans
;
Korea
;
Male
;
Platelet Count
;
Protein C
;
Prothrombin Time
;
Sensitivity and Specificity
;
Thrombosis
10.The Prevalence of Metabolic Syndrome in Inpatients with Schizophrenia.
Jaewoo ROH ; Yeon Soo CHO ; Ae Hwa CHO
Journal of the Korean Society of Biological Psychiatry 2011;18(1):46-54
OBJECTIVES: The objective of this study is to assess the prevalence and risk factors of metabolic syndrome (MS) among inpatients with schizophrenia, and to compare with general population. METHODS: Nine hundreds seventy inpatients were included to assess the prevalence of MS from two mental hospitals in Yong-in city. Assessment of MS was performed based on modified American Heart Association criteria with abdominal obesity threshold of 90cm for men, 85cm for women. Comparative analysis was performed using age- and gender matched sample from Korea Health and Nutritional Examination Survey III. For evaluating risk factors, analysis included 766 inpatients taking consistent medications at least for 30 days. RESULTS: The prevalence of MS of inpatients with schizophrenia was 26.2%, in females it was 33.2%, compared to 20.2% in males(p < 0.001). Compared to general population, the prevalence of MS was significantly lower in male and higher in female patients. In terms of criteria prevalence, who met abdominal circumference criterion were more prevalent in patient group(p < 0.001). After multivariate analysis, female gender and old age remained as risk factors of MS. CONCLUSIONS: The prevalence of MS of inpatients with schizophrenia was 26.2% and significantly low compared to general population. Female gender and old age were risk factors of MS.
American Heart Association
;
Female
;
Hospitals, Psychiatric
;
Humans
;
Inpatients
;
Korea
;
Male
;
Multivariate Analysis
;
Obesity, Abdominal
;
Prevalence
;
Risk Factors
;
Schizophrenia